Ventilator



M. T. HOOPER VENTILATOR Jan. 7, 1930.

Filed Nov. '2, 1928 ATTORNEY Patented Jan. 7, 1930 UNITED STATES PATENT-oFF ICE MARTIN T. HOOPER, OF ALHAMBRA, CALIFORNIA l VENTILATOR Application filed November hensively understood from a consideration of the following detailed description when read in 4connection with the accompanying drawings which form part of the application, with the understanding, however, that the improvement is capable of extended application and is not conned to the exact showing of the drawings nor to the precise construction de` scribed and,therefore,such changes and modi-l fications may be made therefrom as do not affect the spirit of the invention nor exceed the scope thereof as expressed in the appended claims.

In the drawings:

Figure l is a sectional view of my improvement, approximately on the line 1-1 of Figure 2.

y Figure 2 is a horizontal sectional view approximately on the line 2-2 of Figure 1.

In the showing of the drawings, I have illustrated my improvement supported upon the peak of a roof 1 of a building. On the roof 1 there is lixed the flanged edgesof the hollow support 2 of the improvement. The support 2, of course, provides the transition piece between the building and the ventilator.

The body pipe of the ventilator, indicated by the numeral 3, is fixedly secured to the rounded top of the transition piece 2, and riveted or otherwise ellectively secured in the ventilator pipe 3 there are the offset ends 4 of upstanding or vertical supports 5. The supports are in the nature of metal plates and are spaced equidistantly from each other.

There is riveted, bolted or otherwise secured to the outer face of the ventilator, or

there may be integrally formed with the outlet end thereof a downwardly inclined or 5 flared wind deilector 6, the said deflector bethe storm head.

2, 192s. serial No. 316,756.

ing provided at spaced intervals, on its outer edge with outwardly directed lugs or extensions 7 to which is secured a ring band 8. The hollow frusto conical or flared storm head of the ventilator is indicated bythe numeral 9 and this storm head has its inner edges formed or connected with lugs or lextensions 10 that merge into upwardly extending ends or flanges 11 to which latterV there is secured arlat ring band 12 similar to the ring Or band 8. It will be noted that the lower edge of the storm head is approximately in a line with the lower edge of the windd'eflector 6. The braces 5 have their upper edges offset or formed with annular flanges which underlie the storm head and are riveted orV otherwise fixed thereto, while also riveted or otherwise secured on the braces 5 there is aV ring flange 21 of a downwardly and outwardly flared storm flange 13. The storm llange itwill be noted by reference to the drawings, .is disposed between the wind defiector and Arranged lfor travel between the vertical braces 5 of the improvement there is an nwardly or downwardly flared damper member 14. This inverted hollow damper member has secured'thereto a flexible element 15 and this chain is guided around a sheave wheell supported from the apex of the 'storm head. The chain is suitably guided over the damper and between the braces 5 and in the showing of the drawfrusto conical 1 ings, one end thereof is attached to a hook 17, whereby the damper may be arranged in C its fully raised position, as diclosed by Figure 1 of the drawings or may be lowered to closed position on the top of the ventilator pipeBv as also disclosed by the dotted lines in said Figure l. Obviously, the damper may be positioned at any desired vertical adjust-V ment with respect to the' ventilator pipe 3.

The flat ringsS and"12 have secured thereto 'Y the storm bandof the improvement. This storm band is one of theV important features of the invention, the same being made up of anydesired number of arched plates 18, each of said plates being of the same width and length, the length of the said plates being greater than the distance between the'outer 2y n y 1,742,541

improvement to provide a hook 20 that re.-v

eeives the free edge of the adjacent arched plate therein. Obviously the lapping edges of the concaved plates mayY besuitablyconf nected.

All of the parts constituting the improve-.H

ment are fabricated in standard sections or units for veconomy and ease 1n shipping, storingand erecting The concaved plates ,or

portions of thestorm band, contacted byv the@ windprovide'whatI will term the Windward sideof thenimprovement. These plates will' directthe wind away from the said Windward side of the improvement. -The wind deflectorn jat the Windward side of the improve-V mentrwill likewise deflect 'the currentsof wind downwardly and outwardly with Jrespect to .the improvement.H The result is that the fullr forCeof air will be directed `over the ventilator,sothat a vacuumwill be' created in the ventilator: pip/e which literally pulls (and does lnot leject) l foul l air, smoke, etc., through the Yventilator and out ofthe build-ing.` Thus with my ventilator it'will be seen that the storm-band, incidentto the height thereof and the positivelow pressure air-pulling area on the lleeward sideof thejimprovement (that is the ,sideof the improvement opposite what I have termed the Windward side)v prevents wind blowing .throughthe ventilator from the Windward side'. 'Also with my improvement ,the wind deector and the storlniiange pre headfr'om the-bottom vof the improvement and the storm flange positively' prevents storm-,elements entering the ventilator pipe. The draught through theventilator, as previously inferred, is regulated by the adjust-` .Ventv outside airr entering theY ventilator adjusting the damper, a storm band surrounding the lower edge of the storm head and the wind deflector, fixed to these elements but spaced therefrom, and said storm band having'equidistantly spaced vertically disposed concaved portions.

2. A stationaryventilator for buildings, comprising la hollow support,vwhich is fixed on the roof of a building, a ventilator pipe fixed on the outer end of the support and said supportproviding val transition between the building and the ventilator pipe, upstanding armsfsecured to the ventilator pipe, an inverted frusto conical storm head receiving the-upper'ends ofthe-arms therein and secured to said ends, said storrnhead having spaced. extensions whose ends are ilanged,a y downwardly inclined outwardly flared storm flange fixedto the, arms, a downwardly in.- clinedoutwardly flared wind defleetor lsurrounding and fixed to the mouthof theventilator pipe, said deflector having spaced ex-y tensions whose ends'are flanged, flat rings secured to theV flanges on the extensions of the storm head and wind deflector, a storm band arranged around the ringsand fixed thereto,y said storm band having its outer periphery depressions affording wind pockets, and a damper for the ventilator pipe movablevertically between the arms.

3; A storm band for ventilators of the class described, comprising 'vertically disposed kformed with equidistantly spaced 'vertical plates alllof the same length and width', and

which plates are concavedinwardly andliave` their central portions xedly supported, and

the outer edge of eachplate being inbentto,

provide a hoolr to receive the straight-edge of the cooperating plate therein.

In testimony whereof I aii'ix my signature.'-

MARTIN T. HOOPER.

mentof the damper lfl. Itis to be further A noted that all `of the `elements constituting the improvement are firmly and effectively?.

braced, D

Having describedthe invention, I claim:

1.A stationary type ofventilators for` buildings,l including a hollow support xed ona building, a ventilator pipe .fixed on the.;l

support,and said support affording a transif -tion between the building and the `ventilator pipe, upwardly extending spaced arms fixed on the ventilator pipe,a hollow frusto conicalhead fixed von the youter end of saidarms, a downwardly flared, storm flange surroundingvv and xed on said arms, a downwardly in-v clinedilared windr deileetor surrounding and, fixedto Athemouth ofthe pipeT an Yinverted,

hollow .frusto conical damper movableY betweenqthearmsfa flexible pull elementbe.,. tween the; damperzand/the' stor1n,head'. for.

isa, 

